Packaging machine



PACKAGING MACHINE Filed June 8, 1932 9 Sheets-Sheet l ATTORNEY May 14, 1 935,. R, T. ADAMS ET AL PACKAGING MACHINE 9 Sheets-Sheet 2 Filed Junev 8, 1932 rf. ATTORNEY S R O T N E V m May 14, 1935. R, 'r. ADAMS. ET AL PACKAGING MACHINE" Filed June 8, 1932 9 Sheets-Sheet 5 3 ms s R Y m n m w s R E 4/. Au vmw T. 5 m. 00 T MP A BYC IIIIIIIIJ May 14,1935. 1R. T.K4AHDAMS El AL ,1

PAckAG ING MACHINE Filed June a, 1952 1 9 sheets-shew 4 i Q i x INVENTO 5 Morris 5%? men BY Pass If? arms ATTORNEY May 14, 1935 R. 'r. ADAMS ET AL r 2,001,175

PACKAGING MACHINE Filed June 8, 1932 9 Sheets-Sheet 5 kw s m Wm? .T. a km m J o Z T N T I. 70 A 00PM M May 14, 1935.

R. 'r. ADAMS sf AL PACKAGING. MACHINE 9 Sheets-Sheet 6 Filed June 8, 1952 I//////AI VEN o s fircha ra S /Vorr/s Fag mew Foss 7i Hdams WKJaAe/L ATTORNEY May 14, 1935. R. T. ADAMS ET AL 2,001,175

PACKAGING MACHINE Filed June 8, 1932 9 Sheets-Sheet '1 INVENT R5 ir'fchard 6. 0016 No r's Fa mer BY Fa s T Fla ms ATTORNEY May 14, 1935. R. T. pA s r n.

PAUKAGING MACHINE Filed June 8, 1932 9 Sheets-Sheet *8 INVE 1 RS FP/chard 1 00 la,

ATTORNEY May 14, 1935. R. T. ADAMS ET AL I 2,001,175

PACKAGING MACHINE Filed June 8,1932

9 Sheets-Sheet 9 I E T S fithapay g $3929 770. rr/s Fay/wen BY IP26: 7. Hdargs ATTORNEY 3 v3 m bQ containing bag by Patented May 14, 1935 UNITED STATES PATENT oFI-I-cs 2,001,175 v racxacmw mom Boss '1. Adams, Richard s. Poole, and Mon-1- Raymer, Battle Creek, Mich assignors to Kellogg Company, Battle Creek. Mich a corpora?- 1 tion or Michigan Application-June 8,1932, SefiaINoNGIBbW 31 Claims.

This invention relates to packaging machines and more particularly to machines or that char acter adapted to seal the mouth 0! a material the application of adhesive thereto.

An object of the invention is the provision of automatic means forapp y ng adhesive to the mouth of a bag to be sealed.

Another object is the provision of automatic. means for applying adhesive to the mouth of a bag disposed within a'protective carton.

A further. object is the provision of automatic means for applying adhesive to the mouth of a plication of adhesive and while the said mechanism is moving to position to operate upon another bag.

Other objects more or less incidental and ancillary to the foregoing will appear .in the following description and claims.

While the present invention is adapted for use ,in sealing any type of bag' and in combination with-various types of machines, it is especially adapted to seal the conventional inner liner (bag) of a cereal carton. Moisture affects adversely most cereal foods. It is, therefore, desirable to store such cereals in moisture proof packages or containers. Heretofore cereal packages have been moisture-proofedby enclosing them in an outer covering impervious to moisture. More recently the outer covering has been dis pensed with and the inner liner (bag) has been 50. jacent surfaces.

formed of moisture proof paper, usually a wax impregnated paper.- After a bag of this kindhas been filled with the desired cereal it is necessary to close and seal the mouth thereof. In the past this sealing of the mouth has been accomplished in automatic machines by either oftwo methods: namely, by forming suitable folds in the'extended portion of the mouth or by pressing this portion of the' mouth together while applying heat thereto whereby to melt the wax contained in the paper sufiiciently to cause adherence of. the ad- However, in. some respects neither of these methods of closing and sealinga bag-have been entirely satisfactory. In the case of a sealtormed by folding the mouth of the bag, a slight 'dis-" turbance or derangement of the bag causes the fold to become unfolded sufficiently to permit the ingress of moisture-laden air into the. bag. In the case of the wax-seal, difficulty is experienced in providing a proper amount'of wax in- 5 the paper and regulating the application of heat so as not to melt the wax to so great an extent that it flows away from-the portion of the bag to be sealed. i

Both of the foregoing methods have been used 10 in automatic machinery and carried out while the bag to be sealed is moving continuously and usually after it has been inserted in a. protective carton. I V a The present invention is designed to provide a seal which is not subject to the defects inherent in the prior art seals, and which may be applied to a bag contained within a cartonwhile the same is. being moved. continuously. It is contemplated that the present invention be em- 20 bodied in a unitary machine designed merely to seal a'bag or in a machine adapted to perform various other operations in addition to the seal-' ing of a bag. This invention accordingly comprises the features of construction, combination 25 of elements and arrangement of parts hereinafter described and claimed.

A machine illustrating one embodimentof the present-invention is shown in the accompanying drawings, in which:

Figure I is a side view in elevation of the complete packaging machine embodying the'present invention.

FigureII is an enlarged top plan view of a por-" tion of the machine shown in Figure I. 35 Figure 111 is an enlarged partial .top plam view of the packaging machine shown in Figure I illus- Figure I in which the details of the bag sealing mechanism are shown. v

Figure V is an end elevation of the structure shown in Figure IV with parts broken away.

Figure VI is a partial sectional view of the structure shown in Figure V taken on substantially the line V'I-,V'I of that figure and showing the adhesive applying carriage mechanism in the opposite position to that shown in Figure v.1

Figure V1]: is a partial plan view of the structure illustrated in Figure HI showing the adhesive applying carriage mechanism incenter position.

Figure VIII is a cross-sectional view taken 'on 55 substantially. the line VIlIVIII of Figure III illustrating the mechanism for moving the adhesive applying carriage mechanism.

Figure IX is an enlarged partial plan view of the structure shown in Figure I.

Figure X is a diagrammatic plan view of the driving mechanism for the packaging machine embodying the present invention; and

Figure XI is a side view in elevation of the driving mechanism shown in Figure X.

The machine herein shown and described is substantially identical in many details of its construction and operation to the machine shown in United States Letters Patent No. 1,824,401, issued September 22, 1931. It is adapted to receive open mouthed material containing bags disposed within open topped protective cartons and to operate upon the same to (I) prepare the carton, the bag, and the contents of the bag for the subsequent closing and sealing operations; (2) seal the mouth of the bag and tuck it into the carton; (3) close the top of the carton over the bag and expel the closed package from the machine.

For the sake of convenience and clarity, the following description of the construction and operation of the machine is divided into three chapters corresponding to these threeoperations.

CHAPTER I Carton and bag preparing mechanism As shown in Figures I and II packages Pocomprising open mouthed material containing bags disposed within op'en topped protective cartons may be delivered to the packaging machine embodying this invention by means of an endless carrier belt 20. The outer extremity of the carrier belt 20 may be supported upon a conventional pulley member, not shown, and is supported at its inner extremity by means of a driving pulley 2|. The pulley 2| is secured to a shaft 23 which is rotated by means of a chain 22 passing over "a suitable gear carried by a shaft 23 and a similar gear carried by drive shaft 24. V

A pair of guide rails 25 and 26 are secured to the machine frame and disposed slightly above and to the sides of the carrier belt 20 where they serve to position the packages P upon the belt. The guide rails 25 and 26 are provided with a pair of staggered off-set portions 21 arranged so that the movement of a package transported by the carrier belt 20 will be interrupted upon the package arriving adjacent these portions. a Suitable projecting mechanism including a plunger I9 is located adjacent each of the off-set portions 21. The plungers l9 are pivotally connected to the upper extremity of bell crank levers l8 which are in turn pivotally mounted on the machine frame at H. The levers l8 carry rollers l5 at their lower extremities. Forks l5 rigidly ,connected to a shaft |4 engage the rollers I6,

Shaft I4 is oscillated by means of a pitman,- not shown, operatively associated through a suitable cam with shaft 24. The oscillation of shaft |4 causes forks l5 to actuate bell crank levers H3. The plungers I! are thus operated to project the packages past the ofi-set portions 21 at proper intervals whereby to properly space them upon the carrier belt 20. While the packages are re-: strained by the second off-set portion 21 the contents of the package are tamped into position by means of a tamping block 28 actuated by reason of a driving connection with the drive shaft 24. As soon as the tamping operation is completed the second plunger I9 is projected and the package permitted to pass the second off-set portion 21.

Immediately thereafter the package comes in contact with a stop 29, at which point it is transferred from the carrier belt 20 to an individual carrier member 3| by means of a plunger 39 also operatively connected to the drive shaft 24. The

individual carrier member 3| consists of a base or carrier plate 32 secured to a standard 33 and is movably positioned upon a guide rail 34. The carrier is moved along the guiderail 34 by means of an endless chain 35 which passes over sprocket gears 36 carried by the drive shaft 24 and a similar shaft 31.; The carrier members 3| are suitably spaced apart by reason of their connection to the endless chain 35, and the movement of the chain 35 is suitably timed, to permit subsequent operation upon the package as hereinafter described.

The package is next operated upon by mechanism adapted to spread the mouth of the bag and to press the side flaps of the carton downwardly, whereupon they are engaged by flap retaining rails. At the same time the forward carton flap is deflected from its normal vertical position to a position where it is subsequently engaged by a forward flap bending finger.

This mouth spreading and flap deflecting mechanism comprises a bracket 38 carrying a pair of spreader plates 39 and a front flap deflecting arm 41. The bracket 38 is rigidly secured to a rotating shaft 40. The shaft 40 is rotated by means of a suitable driving connection with the drive shaft 24.

The spreader plates 38 are pivotally connected to an-extension of bracket 38 at their inner extremities and are normally held in an inoperative position by reason of their connection with a bell crank lever l3 pivotally mounted on bracket 38 tionary cam 42 having an offset which at the.

proper time deflects the lever I3 and causes the spreader plates 39 to press the mouth of the bag and the side flaps of the carton downwardly.

During the mouth spreading and flap deflecting operation the package is held against lateral imovement by means of a pair of guide rails 43 and 44, secured to which and positioned immediately above the same are a pair of. side flap retaining rails and 45 which engage the flaps as they are pressed downwardly by the spreader plates 39 and thereafter retain the flaps in that position until they are released as hereinafter described. While the spreader plates 39 are spreading the mouth of the bag apart and deflecting the side flaps of the carton the front flap deflecting arm 41 is pressing the forward flap of the carton away from themouth of the bag.

Before the forward flap of the carton is released by the finger ll'that flap is engaged by another arm 48 carried at the extremity of a rotating shaft 49 which is driven from the shaft 40 by means of a drive chain 50. The travel of arm 48 is shown in dotted lines in Figure IV. The arm 48 presses the forward flap of the carton to a position somewhat below horizontal. While the flap is retained in this position a flap retaining plate 5|' secured to the next preceding carrier member 3| is actuated to engage the flap --and thereafter retain it in a substantially horirotatable shaft 53.

the flap at the proper instant by means of an arm 52, as shown in Fig. .V, operatively connected to the plate 5|, striking a stationary stop 53 secured to the bed of the machine. The stop 53 continues to hold the flap retaining plate 5| in its operative position until the flap is released in order to close the carton as hereinafter,

described.

Cmirrnafl -Bag sealing and tucking mechanism It will be remembered that the side flaps and forward flap of the carton are retained in position away from the'mouth of the bag contained within the carton as itapproaches the bag sealing and tucking mechanism.

This mechanism is best shown in Figures III, IV, V, VI, VII and VIII. As shown in Figure V each of a pair of adhesive applying blocks 54 are pivotally. connected to the lower extremity of a pairof plunger rods 55 which are resiliently and slidably mounted within a hood 55. The hood 56 is rigidly secured to a longitudinally movable table .59 slidably mounted upon a pair of rods 60 which are rigidly affixed to a transversely movable table 6|. The table 6| is slidably mounted .upon a pair of rods 52 which are rigidly secured to the machine frame.

The tables 59 and 6|, as well as the hood 5 6,

are shown in their inoperative or retracted position in Fig. VII. These members are shown in their'operativeor extended position in Figure V. Suitable mechanism is provided for causing the hood 55containing the adhesive applying blocks 54 to be extended outwardly over the pathway of the carton to be operated upon and for causing these parts to travel along the pathway that the package travels while adhesive is transferred to the inner surface of the mouth of the bag contained within the carton. I

The adhesive applying mechanism including the blocks 54 is caused to move outwardly over the line of travel of the bag to be sealed and to move inwardly away from the bag by reason of the transverse movement of the table 6 I. Transverse movement is imparted to the'table 6| bymeans of a pinion gear 64 carried upon a carriage 65' slidably mounted in a groove within a stationary frame of the machine. The pinion gear 64 meshes with the teeth of a stationary r'ack 66 on one side and the teeth of a rack .61 carried by the table 6| on the other side. The carriage 65 carrying the pinion gear 64 is moved in and out by means of a lever 68.. rigidly secured to a A rotary movement is imparted to the shaft 53 by means of a reciprocating crank 69 having one extremity connected to the shaft 63 as indicated at 10 and the other extremity associated with a revolving gear carried by the drive shaft 12. The extremity of the crank 69 associated with-the gear 1| is preferably forked and receives power therefrom by means of a conventional raceway connection therewith. v e

As the carriage 65 is moved in and out by reason of the drive connections just described the pinion gear 64 causes the table 6| to move back and forth upon the rods 62 whereby the adhesive applying mechanism is alternately extended over the pathway of the moving package and withdrawn to an inoperative position. I

'Ihe longitudinal movement of table 59 is ac- I complished in a manner Substantially identical immersed in a. quantity. f q d a v con-' to the transverse movement ofthe table 5|. As

' best shown in Fig. Va movable carriage 13 is means of suitable connecting links 18, 89' and.

lever 19. Ihese links are actuated to movement by reason of their association withdrive: shaft 82 in the same manner that link. 69 is associated with shaft 12. Shaft 82 is driven from shaft [2 by means of a drive chain 83. Chain 83 is held taut by-the chain tightener; 93a.

From the foregoing description. it will be apparent, since the adhesive. blocks 54 and the mechanism associated therewith are secured to the table 59 which is in turn'secured to table 6| that the blocks will move back and forth along the line of travel of the carrier members 3| while at the same time they will be alternately extended and retracted. These movements are properly timed so that the? adhesive applying mechanism 'will come into position over one of the carrier members 9|, as shown in dotted lines in Figure VII, and thereafter travel with the carrier member for a short distance in the direction of the arrow in that figure.

As the hood 56 containing the adhesive applying'mechanism moves along over the package carried by the carrier member 3| a roller 84 rigidly and rotatably secured to the upper extremity of the resiliently mounted rods 55 c'omesin contact at the proper instantwith a movable cam 85 which has been actuated to contact the roller 84. The cam 85 is operated by means of the shafts 51 and 8| and the lever 58 all operatively connected together and deriving power from the drive shaft 86 When the cam 85 strikesthe roller 84 the rods 55 are projected downwardly. The downward moveinent of the rods 55 cause the blocks 54 to assume the position shown in dotted lines in Fig lire 'V. In this manner adhesive is transferred from the blocks to the inside surface of the mouth of the bagforming a part of the package P. The blocks are actuated to move to this position by reason of their pivotal connection at 119 to shafts 9| secured to the lower extremity of 0 rods 55. The blocks are also pivotally connected to a pair of links 88 which are in turn pivotally connected to a pair of stationary shafts 81. Ac cordingly, when the rods 55. cause theblocks 54 to move downwardly the restraining influence of the links 88 also causes them to rotate to the position shown in dotted lines in Figure V. The rods 55 and blocks 54 are normally held in the position shown in full lines in Figure V by means of a compression spring 92 encircling pin 93 and compressed between a stationary part of the hood and a part movable withlthe rods 55. As soon as the pressure of the cam 85 is released from the roller 84 the spring 92 causes the blocks to resume their inoperative position. A set screw l8 limits the upward movement of the, rods .55 and the blocks 54.

After adhesive has been applied to the inner surface of the mouth of the bag the adhesive applying mechanism is returned to its starting position by reason of the movementof the tables 59 and 6|. In returning to their starting position the blocks 54 pass'over a roller 94'partly tained within a tank or container 95. The roller 94 is suitably mounted within the tank 95 so that it may be rotated by means of a chain or belt 96 operatively connected to the drive shaft 86, whereby to insure an even distribution of adhesive upon the blocks 54. It will, of course, be understood that the adhesive roller 94 is driven in the same direction and at the same speed as the blocks 54 at the time they contact therewith. Suitable mechanism, shown in Figure VI and identified by the numeral 91, is provided to prevent adhesive from accumulating in undesirable quantities upon the roller 94.

In order to prevent the adhesive applying blocks 54 from contacting the roller 94 as they move outwardly to apply adhesive upon the bags, suitable mechanism is provided for raising and lowering the tank 95 supporting the roller 94. This mechanism comprises the links 98, I and lever 99, IOI, which are, as shown in Figure IV, actuated by means of their association at I02 with the rotating pulley I03 carried by the drive shaft 85. It will of course be understood that tank 95 and roller 94 are lowered but slightly to permit the blocks 54 to pass above the roller. A belt tightener 96a keeps belt 96 taut when roller 94 is'lowered, thus preventing the belt from becoming disengaged from the roller 94 or the pulley carried by shaft 86.

In order to insure a proper sealing of the bag after applying adhesive to the inner surface of the side wallsthereof, the ends of the bag are folded whereby the side walls are caused to assume substantially parallel positions in relatively close proximity to each other. This operation is accomplished by a pair of folding arms I04 and I05 which are pivotally connected to a bracket I06. The arms I04 and I05 are actuated to form a fold in the opposite ends of a bag by means of a pair of links I01 and I08 which are pivotally connected to a rod or shaft III] supported by a bracket I09 carried by a frame member II I. The shaft I I0 is oscillated by means of a pair of links H2 and H3 which are operatively associated in a well known manner with a pulley rigidly secured to the drive shaft 82.

It will be remembered that each of the carton flaps, with the exception of the rear flap, are held in a position at right angles to the body of the carton as it approaches the folding mechanism. 'In order to prevent the rear flap of the carton from interfering with the folding mechanism just described a flap retaining finger H4 is actuated through suitable connection with the shaft I I0 to bend the rear flap of the carton away from the mouth of the bag temporarily while the folding mechanism is operating thereon.

After the end portions of the bag have been folded as just described the side portions are pigessed together by a pair of presser irons II 5. Each of these presser irons are supported by a longitudinally movable table In which is in turn supported by a transversely movable table 6. The longitudinally movable table 1 is mounted upon a pair of slide rods II8 rigidly secured to the table I I6. The transversely movable table I I 6 is mounted upon a pair of slide rods II9 rigidly secured to the machine frame. Longitudinal movement is imparted to the table II1 by means of a pinion gear I operatively associated with a fixed rack and a rack carried by the table. The pinion gear is actuated to move the table II1 longitudinally by means of a link I2l connected to a shaft I22 which is oscillated by means ofa thrust rod. I23. The thrust rod I23 is operatively associated with a cam I24 carried by a drive shaft I25. The transversely movable table H6 is actuated to move in and out by reason of its connection with an oscillating shaft I26 through means of a link I21 and an arm I28. An oscillatory movement is imparted to the shaft I26 by means of suitable motion transmitting mechanism I29 connected to the base of the shaft I26 and operatively associated with a cam member carried by the drive shaft I25.

It will be observed that only one of the shafts I26 is connected as just described with the drive shaft I25. Motion is transmitted to the other shaft I26 and in turn to the other transversely movable table II6 by means of a tie rod I I'll. In this manner the two opposed pressing irons II5 are moved longitudinally and transverscly whereby to press the edges of the bag together while traveling with the same. The tie rod I3I insures proper cooperation between the opposing presser plates II5, A suitable resistance coil, not shown, may be associated with one of the presser plates H5 and connected with a source of electrical energy for the purpose of heating the plate, whereby to facilitate the sealing of the bag operated upon by the plates.

When heatis used in connection with the presser plates II 5; it is desirable to retain the mouth of the bag in its closed or sealed position until cooled. When heat is not applied it is 3 desirable to'hold the mouth of the sealed or closed bag in a closed position until the adhesive has'partially set. The mechanism for accomplishing these results comprises a pair of, endless chains I32 and I33. upon rollers secured to stub shafts I34 and are positioned closely together. The chains I32 and I33 are spaced at a proper height so that the closed neck of the bag passes between them and is firmly held in a closed position. The rollers carricd by the shafts I34 are revolved, whereby to cause the chains to travel with the bag, by means of a suitable gear I35, secured to one of the shafts, meshing with a similar gear I 36 secured to the end of a shaft I 31. The shaft I 31 is driven by the drive shaft I through means of a suitable chain or belt connection I38.

After the mouth of the bag contained within the carton has been properly sealed by the application of adhesive thereto and the pressing of the same together, it is then tucked into the carton so that the latter may be closed and sealed over the mouth of the bag. The tucking mechanism comprises a presser plate I39 carrying therebeneath a resilient member I40 adapted to engage the extended neck of the bag and, upon being properly actuated, to tuck the same into the carton. The presser plate is operatively connected to a movable carriage l93a'carried by movable carriage I39b. The carriages are actuated by means of the drive shaft I through the driven shaft I42 to move the presser plate toward and along with each carrier 3 I. When the presser plate I 39 is moved to a proper position over the package to be operated upon, a trigger I43 associated with the presser plate I39 strikes a stationary cam I44 thus causing the resilient member I40 to be depressed whereby the mouth of the bag is pressed down into the carton.

Crrarm III Carton closing and expelling mechanism As described in Chapter II the mouth of the bag contained within the carton is sealed in a The chains are mounted against the forward flap, is discontinued whereupon the plate releases the forward flap and returns to its inoperative position.

As soon as the forward flap has been released as just described, the carrier member 3| delivers the carton to a position where a runner or forward flap closing plate I45 is secured to a bracket I46..

Also connected to the bracket I46 is a rear flap closing finger I46a adapted to raise the rear flap far enough to permit the upturned forward edge of the runner I45 to press it snugly against the top of the carton. A pitman I41 having a forked extremity engaging a cam I4Ia carried by shaft I4'I actuates finger I46a through ratchet mechanism I46b to engage the rear flap at the proper moment.

Adjacent the mechanism just described one of the side flap retaining rails 46 is discontinued and the flap thus released passes between a pair of adhesive rollers I48 and I49 positioned alongside the'carrier system. Roller I48 is partially immersed in an adhesive bath I50. It-is rotated by roller' I49 contacting therewith. Roller I49 is.

secured to rotatable shaft driven from one of the drive shafts of the machine by the chain I5I.

Adjacent thegglue applying mechanism the fiap retaining rail 45 retaining the other flap is also discontinued and the guide rail 43 is continued in the form of a shield I52 by means of which that fiap is gradually brought to an upright position preparatory, to being closed.-

After the side flap has been coated on both sur-' faces with adhesive,- as just described, it is bent upwardly and inwardly by means of a stationary guide rod I 53 while at the same time the opposite means of the guide plate I52. L The glued flap is pressed down against the front and rear flaps by means of a roller I54 resiliently mounted upon a bracket I69 carried by the longitudinally movable carriage I55. Longitudinal movement is imparted to the carriage I55 in a well known manner by means of suitable pinion gear-and rack mechanism I66. Power is deliveredto the pinion gear from one of the drive shafts of the machine through means of the pitman I65. The longitudinally movable carriage I55 is mounted upon slide rods, I61 carried by a transversely movable carriage I56 mounted upon slide-rods I68."

The resilient mounting for roller I54 includes the springs I10 which tend to keep the roller in the extended position shown. The frame supportin'gthe roller I54 carries a smaller roller I51 adapted to contact a stationary cam I58 wherewv by to contract springs I10 to hold roller I54 in 1 a retracted position. When the carriage I55 is I moved to the position shown roller I51 disengages Y and at the same time the unglued side flap is 75.

pressed down upon the glued flap by the extended portion I6I of the guide plate I52. when the carton is projected from the carriage 3| itis transferred to a bed I62 and passes under rollers I63 which continue the downward pressure upon the top fiap. From the bed I6I the carton passes to a carrier belt I64.

Summary The packaging machine herein shown and described as embodying the present inventionis designed to operate upon open-mouthed materialcontainingbags disposed within open topped protective cartons. The bag and carton may be formed, and materialmay be placed in the bag, by a machine operated in combination with the present machine. Likewise these operations may all be performed by the same machine that closes and seals the bag and carton.

However, material containing bags and carbons are delivered to the packaging machine here shown by means of conveyor belt 20. The first operation performed upon them comprises arranging them upon'the belt in properly spaced relation to each other. The material is then properly stowed in the bag bymeans of the tamping block 28. The succeeding operations require the package comprising the bagand car-v fiap retaining rails 45 and 46. At the same time.

the-rotating finger 41 and arm 46 bend the forward carton'fiap away from the carton where it is engaged by the fiap retaining. plate 5I secured to the next preceding carriage 3I. In this manner the side and forward carton fiaps are moved away fromzthe extended mouthof the bag whereby the bag mouth-closing and sealing and tucking operations may be performed without interference from the carton flaps. v

The mouth of the bag is closed and sealedby means of applying adhesive to theinner surface of the same and thereafter pressing the edges mouth of each 'bag' by the adhesive blocks 54 plenish their supply of adhesive by passing over the adhesive roller 94. After the inner surface of the mouth of the bag has been coated with adhesive the ends of the bagare folded by the folding arms I04. and I05 to bring the sides thereof in spaced parallel relation; During the folding operation the rear carton flap is pressed'away from the mouth of the bag by the flap retaining finger H42 ,thereof together- Adhesive is applied to the The substantially parallel side walls 8f the mouth of the bag are. next firmly pressed together by the presser irons I I5, one of which may be heated, whereby to .causethe adhesive contained on the same'to'effectively' seal the mouth of the bag. In order to assurea satisfactory' sealing of the mouth it is next passed between the revolving chains I32 and I33 which hold itin a closed position 'while it is cooling and until. the adhesive has set 'sufliciently toeliminate the possibility of an imperfect sealing thereof. Imme- The final operations upon the package consist of releasing the retained side and forward flaps of the carton, passing one of the side flaps between, the adhesive rollers I48 and I49, folding the end flaps upon the closed mouth of the bag by the plate I45, pressing the adhesive coated flap down upon the end flaps by means of the roller I54, folding the other side flap over the adhesive flap by' means of the guide plate I52, and ejecting the package from the machine by the plate secured to the movable carriage I55 whereby the package is forced beneath the rollers I63 which press the uncoated side flap firmly against the opposite adhesive coated side flap. In this manner the carton is sealed in a closed position, and the package ejected from the machine and transferred to the conveyor belt I64.

It will, of course, be remembered that after a package has been transferred to the carriage members 3| all of the succeeding operations are performed upon the package while it is being continuously moved by the endless chain 35. However, if desired, the motion of the chain, and accordingly the packages carried by the carriers 3|, may be made intermittent, in which event slight changes would be made in the operating mechanism.

While only a single specific embodiment of the invention has been herein shown and described, it should be understoodthat the invention is not limited thereto but is co-extensive with the scope of the appendedclaims.

We claim:

1. A bag sealing machineincluding in combination, means for carrying an open mouthed bag, means for applying adhesive to the inside .edges of the mouth thereof at the same time, means for folding the mouth of the bag to form a pair of substantially parallel side walls, and means for pressing the said pair of side walls together, whereby to seal the mouth,

2. A bag sealing machine including in combination, means for carrying an open mouthed bag, means for applying adhesive to the mouth of the bag, means for folding the mouth of the bag to form a pair of substantially parallel side walls, and means for simultaneously applying pressure and heat to the outer surface of the said side walls, whereby to effectually seal the mouth of the bag.

3.'A bag sealing machine including in com- "bination, means for carrying an open mouthed bag, means for applying adhesive to the mouth of the bag, means for simultaneously applying heat and pressure to the mouth of the bag to effectually seal the same, and means for cooling the mouth of the bag while retaining it under pressure.

4. A bag sealing machine including in combination, means for carrying an open mouthed bag, means for applying adhesive to the mouth of the bag, and means traveling with the bag for pressing the mouth together while applying heat 3 thereto whereby to seal the same.

5. A bag sealing machine comprising a carrying system adapted to move an open mouthed bag, an adhesive applying device adapted to travel in the same direction as the bag and enter the mouth of the bag and transfer adhesive to the inner surface thereof, and means disposed on the opposite sides of the carrier system for pressing the mouth of the bag together whereby to seal the same. i

6. A bag sealing machine comprising a carrier system adapted to move an open mouthed bag,

an adhesive applying device adapted to enter the mouth of the moving bag and transfer adhesive to the inner surface thereof, and means disposed on opposite sides of the carrier system for pressing the mouth of the bag together whereby to seal the same.

7. A bag sealing machine comprising a carrier system adapted to move an open mouthed bag, an adhesive applying device adapted to enter the mouth of the moving bag and transfer adhesive to the inner surface thereof, and means adapted to move with the bag for pressing the mouth together whereby to seal the same.

8. A bag sealing machine comprising a carrier system adapted to move an open mouthed bag, a container for liquid adhesive disposed adjacent the carrier system, an adhesive applying device adapted to travel in the same direction as the bag and transfer adhesive from the said container to the inner surface of the mouth of the bag, and means disposed on the opposite sides of the carrier system for pressing the mouth of the bag together whereby to seal the same.

9. A bag sealing machine comprising a carrier system adapted to move an open mouthed bag, a stationary adhesive container'disposed adjacent the carrier system, a movable adhesive device adapted to transfer adhesive from the container to the inner surface of the mouth of the bag while traveling with the bag, and means for pressing the mouth of the bag together whereby to seal the same.

10. A bag sealing machine comprising a carrier system adapted to move a plurality of spaced apart open mouthed bags, an adhesive container disposed adjacent the carrier system, an adhesive applying device adapted to transfer adhesive to the mouth of each bag successively, and to take up more adhesive from the said container while traveling from one bag to the next successive bag.

11. A bag sealing machine comprising a carrier system adapted to move a plurality of spaced apart open mouthed bags, a liquid adhesive container disposed adjacent the carrier system, an adhesive roller adapted to rotate with a portion thereof immersed in the said liquid adhesive, and an adhesive applying device adapted to transfer adhesive to the mouth of each bag successively and to take up more adhesive from the said roller while traveling from one bag to the nextv succeeding bag.

12. A bag sealing machine comprisinga carrier system adapted to move a plurality of spaced transversely of the carrier system whereby the said device travels a limited distance with each bag successively, means for actuating the adhesive applying device to enter the mouth of each bag while traveling with it whereby adhesive is transferred to the inner surface thereof, and means for replenishing the adhesive on thead-' hesive applying device while returning to its starting position preparatory to traveling with the next succeedihgbag. v v

14.'A machine for sealing material in lined cartons including in combination, means for moving an open topped carton containing an, open mouthed bag, adhesive applying mechanism adapted to transfer adhesive to the mouth of the bag while traveling with the same,- means for applying pressure to the,mouth of the bag tcrclose and seal the same, and means for closing the top of the carton.

.15. A machinefor sealing material in lined cartons including in combination, means for moving a plurality of spaced apart open topped cartons containing open mouthed bags, adhesive applying mechanism adapted to transfer adhesive to the mouth of each successive bag while moving with the same, means adapted to travel with each bag successively for applying pressure to the mouth thereof to close thesame, and

' means for closing the top of the carton.

a cartons including in combination,- means for. moving a plurality of spaced apart open topped cartons containing open mouthed bagsjstation 16. A machine for sealing material in lined ary means for holrtng the carton tops away from the mouth of the bags while they are being operated' upon, adhesive applying. mechanism adapted to transfer adhesive to the mouth of each bag successively while moving-with the same,

means adapted to travel with each bagsuccessively for applying pressure to the mouth thereof to close and seal the same, and means for closing the top of the carton.

'17.- A machine for sealing material in lined cartons including in combination, means for movingan open topped carton containing an open mouthed bag,means adaptedto travel in the same direction as the bag for applying adhesive 7 to the mouth of the bag whereby to seal the same, means for tucking the closed mouthinto the carton,.and means for closing the top of the carton over the bag.

18. A machine for sealing material in lined cartons including in combination, means for moving ,an open topped carton containing an open mouthed bag, adhesive applying mechanism adapted to transfer adhesive to the mouth of the bag, means for closing the mouth under pressure while applying heat thereto, and means for closing the top of the carton over the mouth ofthe bag.

19. A sealing machine comprising a carrier system adapted to move anopen mouthed container, an adhesive applying device movable transversely to the movement of the container, thence with the same and downwardly into the mouth of the moving container toitransfer adsystem hesive to the inner surface thereof, and means the mo thtogether whereby to seal the same.

20. A liag sealing machine comprising a carrier dapted to move an open mouthed bag, an adhesive container disposed adjacent the carrier system, a movable adhesive device adapted to-transfer adhesive from the container to the inner surface of the mouth of the bag while travcling therewith, and means for lowering the container'when the adhesive device is moved into operative position to apply adhesive to the mouth of the bag.

21. A bag sealing machine comprising a carjrier system adapted to move an open mouthed bag, an adhesive container disposed adjacent the carrier system,'a movable adhesive device adapted to transfer adhesive from the contain'erto the inner surface of the mouth of the bag while traveling therewith, and means for lowering the container when the adhesive device is moved into of the bag, and means for pressing the mouth of the bag together whereby to seal the same.

'22. A bag sealing machine comprising means for, supporting a bag, an'adhesive container disposed adjacent said supporting means, an adhesive roller adapted to rotate with a, portion thereof immersed in the adhesive contained within said container, an adhesive applying device adapted to transfer adhesive from the roller to operative positionto apply adhesive to the mouth the inneriopposed surfaces of the mouth of the bag at the same it me, and means for moving the adhesive container away from the adhesive applying device before the latter transfers the; adhesive.

23. A bag sealing machine comprising a carrier system adapted to move a plurality of spaced apart open mouthed bags, an adhesive container disposed adjacent the carrier system, anadhesive applying device adapted to transfer adhesive to the mouth of each bag successively and take up more adhesive from the said container while traveling from one" bag to the next successive bag, and means for moving the container clear the mouth at the same time, and means for 'replenishing the adhesive on the'a'dhesive'applying device while returning to its starting position preparatory to traveling in a position whereby to apply adhesive to enter the container.

25. A bag sealing machine comprising a carrier system adapted to move a plurality of spaced apart open mouthed bags, an adhesive container disposed adjacent the carrier system, an adhesive applying device disposed adjacent the carrier system, means for oscillating the adhesive applying device "longitudinally and transversely of the carrier system whereby the said device travels a limited distance with each bag successively, means for actuating the adhesive applying device to enter the mouth of each bag while traveling with it whereby adhesive is transferred to the irmer surface thereof, means for replenishing the adhesive on the adhesive applying'device while returning to its starting position preparatory to traveling with the next succeeding bag, and means for applying pressure to the mouth of the bag to close and seal the same.

26; A bag sealing machine comprising a carrier system adapted to move a plur l y l paed device longitudinally and transversely of'the car rier system whereby the said device travels a limited distance with each bag successively,

means for actuating the adhesive applying device to enter the mouth of each bag while traveling with it whereby adhesive is transferred to the inner surface thereof, means for moving the adhesive container clear of the adhesive applying device when the latter is actuated, means for replenishing the adhesive on the adhesive applying device while returning to its starting position preparatory to traveling with the next succeeding bag, and means for applying pressure to the mouth of the bag to close and seal the same.

27. A machine for sealing material in lined cartons including in combination means for moving a plurality of spaced apart open topped cartons containing open mouthed bags, adhesive applying mechanism adapted to transfer adhesive to the inner surface of the mouth of each successive bag, means adapted to travel at. the same rate of speed as the bag for successively applying pressure to the mouth of each bag to close the same, and means for closing the top of the carton.

28. A bag sealing machine comprising a. carrier system adapted to move an open mouthed bag, an adhesive applying device adapted to enter the mouth of the bag and transfer adhesive to the inner surface thereof, and means for pressing the sides of the moving bag together whereby to seal the same.

29. A bag sealing machine comprising'a carrier system adapted to move a plurality of spaced apart open mouthed bags, an adhesive device adapted to transfer adhesive to the mouth of each bag successively, means for replenishing the adhesive on the adhesive device between each successive application of adhesive to a bag, and means for applying pressure to the mouth of the moving bag whereby to seal the same. i

30. A machine for sealing material in lined cartons'including in combination means for moving an open topped carton containing an open mouthed bag, adhesive applying mechanism adapted to apply adhesive to the mouth of the moving bag,'means for applying pressure to the mouth of the'moving bag to close and seal the same, and means for closing the top of the carton over the closed mouth of the bag.

31. A machine for sealing material in lined cartons including in combination means for moving an open topped carton containing an open mouthed bag, adhesive applying mechanism adapted to transfer adhesive to the mouth of the bag, means for holding the top of the carton away from the mouth of the bag while adhesive is being applied thereto, means for applying pressure to the mouth of the bag to close and seal the same, and means for closing the top of the carton over the closed mouth of the bag.

ROSS T. ADAMS.

RICHARD S. POOLE.

MORRIS RAYMER. 

